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A detailed buying guide: how to choose an air blow gun.
This section covers air blow guns with short and extended nozzles, adjustable and safety tips. They are used to clean machines, parts, engines, filters, holes and work surfaces from dust, chips and water in workshops, car service centres, building sites and home garages. A blow gun is the simplest and most affordable tool in an air system, works without electricity or sparks and connects to an electric or petrol compressor.
Short-nozzle guns suit general cleaning, while extended nozzles of 100–300 mm reach deep holes and awkward spots. There are also spray and washing guns that mix a cleaning solution into the air stream. See what pneumatic tools are and how they work.
Safety nozzles with side vents reduce outlet pressure when the tip is pressed against a surface, and a rubber tip does not scratch parts. Never point the air jet at your body or clothing. Read how to use pneumatic tools safely.
Depending on the 1.5–3 mm nozzle diameter, air consumption is 80–300 l/min, and long continuous blowing quickly empties a small compressor. For short cleaning jobs a compressor with a 24–50 l tank is enough. Read how to calculate compressor air delivery and how to choose an air compressor.
A progressive trigger or adjusting screw lets you vary the flow, from delicate parts to heavy chips. Cleaning usually needs only 3–6 bar, and higher pressure just increases consumption and risk. See how to choose compressor working pressure.
A plastic body is light and does not feel cold in the hand, while cast aluminium or zinc bodies last longer in a workshop. Choose a model with replaceable nozzles and valve. Read how to choose spare parts for pneumatic and hydraulic tools.
Blow guns usually have a 1/4" inlet thread or a pre-fitted EURO, ORION or RAPID quick coupler. Make sure it matches the couplers on your hose. See how to choose an air hose and quick couplers.
For cleaning or blowing off before painting, air must be free of water and oil, otherwise contamination stays on the surface. Fit a moisture filter and drain the compressor condensate regularly. Read how to prepare compressed air: condensate, filters, regulators, and lubricators and how to store and maintain an air compressor.
The air jet throws up chips and dust, and nozzle noise can exceed 85 dB, so safety glasses and hearing protection are a must. Never clean clothing or skin with compressed air, and release the pressure after use. See how to choose safety glasses and how to choose hearing protection.
At ToolsArmenia you can compare air blow guns by nozzle type and length, flow control, body material and coupler and choose the right model for your cleaning jobs.
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